
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1989
1990
1990s
1990-1991
1989
1990-1991
1990
1990
1990
1989
1990
1989
2000-100
2000-100 BCE
1988
1988
1988
circa 1990
1990s
1990
1988
1839 (original); circa 1988 (replica)
1990
1990
4000-2001 BCE
1989
1988-1990
1990-95
1991
early 1990s
1989-1991
1989
1990
1991
1991
1990
1988
1988
1988
1988
1988
circa 1989
circa 1990
circa 1990
circa 1990
1990s
30 CE
30 CE
2686-2613 BCE